English verb conjugation
COULD NICKEL

Regular verb: nickel - nickelled - nickelled

Affirmation

Simple form	V-ing form
I could nickel you could nickel he could nickel we could nickel you could nickel they could nickel	I could be nickelling you could be nickelling he could be nickelling we could be nickelling you could be nickelling they could be nickelling
Perfect	V-ing perfect
I could have nickelled you could have nickelled he could have nickelled we could have nickelled you could have nickelled they could have nickelled	I could have been nickelling you could have been nickelling he could have been nickelling we could have been nickelling you could have been nickelling they could have been nickelling

Negation

Simple form	V-ing form
I couldn't nickel you couldn't nickel he couldn't nickel we couldn't nickel you couldn't nickel they couldn't nickel	I couldn't be nickelling you couldn't be nickelling he couldn't be nickelling we couldn't be nickelling you couldn't be nickelling they couldn't be nickelling
Perfect	V-ing perfect
I couldn't have nickelled you couldn't have nickelled he couldn't have nickelled we couldn't have nickelled you couldn't have nickelled they couldn't have nickelled	I couldn't have been nickelling you couldn't have been nickelling he couldn't have been nickelling we couldn't have been nickelling you couldn't have been nickelling they couldn't have been nickelling

Interrogative form

Simple form	V-ing form
could I nickel? could you nickel? could he nickel? could we nickel? could you nickel? could they nickel?	could I be nickelling? could you be nickelling? could he be nickelling? could we be nickelling? could you be nickelling? could they be nickelling?
Perfect	V-ing perfect
could I have nickelled? could you have nickelled? could he have nickelled? could we have nickelled? could you have nickelled? could they have nickelled?	could I have been nickelling? could you have been nickelling? could he have been nickelling? could we have been nickelling? could you have been nickelling? could they have been nickelling?

Interro-negative form

Simple form	V-ing form
couldn't I nickel? couldn't you nickel? couldn't he nickel? couldn't we nickel? couldn't you nickel? couldn't they nickel?	couldn't I be nickelling? couldn't you be nickelling? couldn't he be nickelling? couldn't we be nickelling? couldn't you be nickelling? couldn't they be nickelling?
Perfect	V-ing perfect
couldn't I have nickelled? couldn't you have nickelled? couldn't he have nickelled? couldn't we have nickelled? couldn't you have nickelled? couldn't they have nickelled?	couldn't I have been nickelling? couldn't you have been nickelling? couldn't he have been nickelling? couldn't we have been nickelling? couldn't you have been nickelling? couldn't they have been nickelling?